Family forcing NRI to sign a home loan?

Hi all, I am new to this forum so please correct me if I missed something. I am a US Green Card holder, living in US. I have my mother and brother in India, who live on self-employment/Agricultural Income. They were in good terms with a property developer and unfortunately the prop developer has defaulted and reported missing since. So all the people my family owes money are on them. My family recently called me and wanted me to sign some papers (From overseas and sent by Intl post). I thought it was normal. But they have actually gift deed all titles on their name to mine to save their assets and wait till the defaulted developer is caught. And I was emotionally targeted to help them save their assets from all lenders. Now they caught the developer and the developer has apologised and wants to pay my family their money back so he wants to offer them a house asset value 70laks, which is already on a housing loan (buyer paid 35lks in full and rest 35lks borrowed housing loan against the same property). Now my family is forcing me to sign up for the housing loan and give GPA to them. How will this affect me? What are my deportation consequences due to this situation? I am only 27 but I have been constantly targeted by my mother and brother for any sort of weird money making schemes that I don't want to be a part of (I have been recently diagnosed with mild heart strokes and high blood pressure)? I don't want to be part of any of this so I'm considering to gift deed their assets back to them. I will be applying my US citizenship in a few months so I would like some advice to clear all this mess and know what they are trying to do and understand the circumstances that affects me? Regards ~PB (simple guy earning his daily bread and butter without depending on anyone).